planning a low boost 6-7psi set up on my d15b mini me, but i want to put a lil insurance in the bottom end, im thinkin stock d15 pistons, a good set of piston rings, main/rod bearings. but i dont want to do the d15 connecting rod thing so i was wounding about shot peening my stock ones. what do YOU think? strong enough? no chrio too much $$.